I'm a Senior Software Engineer with 10 years of experience building scalable full-stack and cloud-native applications across automotive, fintech, and AI-driven platforms. I specialize in Python, JavaScript, AWS, and AI/ML integrations, delivering high-impact systems at scale. I thrive in cross-functional teams, lead and mentor engineers, and keep current with the latest cloud, AI, and frontend/backend practices. Outside of production work, I design curricula and mentor students in AI/ML and full-stack development through university collaborations and workshops.

Roger Fleenor

I'm a Senior Software Engineer with 10 years of experience building scalable full-stack and cloud-native applications across automotive, fintech, and AI-driven platforms. I specialize in Python, JavaScript, AWS, and AI/ML integrations, delivering high-impact systems at scale. I thrive in cross-functional teams, lead and mentor engineers, and keep current with the latest cloud, AI, and frontend/backend practices. Outside of production work, I design curricula and mentor students in AI/ML and full-stack development through university collaborations and workshops.

Available to hire

I’m a Senior Software Engineer with 10 years of experience building scalable full-stack and cloud-native applications across automotive, fintech, and AI-driven platforms. I specialize in Python, JavaScript, AWS, and AI/ML integrations, delivering high-impact systems at scale.

I thrive in cross-functional teams, lead and mentor engineers, and keep current with the latest cloud, AI, and frontend/backend practices. Outside of production work, I design curricula and mentor students in AI/ML and full-stack development through university collaborations and workshops.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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Language

English
Fluent

Work Experience

Senior Software Engineer at CDK Global
September 1, 2024 - November 1, 2025
Full-stack app development: designing, developing, testing, and deploying high-quality JavaScript front-end and back-end components for a cloud-based inventory system, adhering to best practices and coding standards. AI integration: collaborating with cross-functional teams to embed AI features into the cloud-based inventory management solution, enhancing data-driven decision making. Code quality: implementing unit tests with Jest and Cypress and participating in code reviews to maintain reliability. Technical leadership & mentorship: guiding and mentoring junior engineers and sharing knowledge to raise the team’s skill level. Continuous learning: staying current with latest Java/JavaScript/AWS/cloud-native advances and actively participating in discussions to promote collaboration.
Senior Software Engineer Consultant at Uber
July 1, 2024 - September 1, 2024
Led integration of a Python-based application into a scalable cloud environment, improving efficiency of 1099 form filing processes. Designed and implemented full-stack enhancements (backend Python, frontend JavaScript) and ensured secure data handling with AWS.
Senior Software Engineer at Stella Automotive AI
April 1, 2023 - March 1, 2024
Owned multiple full-stack apps, REST APIs & ETL pipelines connected to LLMs/ML models built on Python, FastAPI, Rust, React, Ruby, Java, SQL & MongoDB, with Docker on AWS. Scaled a call-processing system from 100 calls/day to a fully automated AWS cloud solution handling 20k calls/day. Led data scientists, ML engineers & researchers for application deployment to AWS Cloud and engineering sprint planning, mentoring junior engineers on deployment best practices.
Software Engineer II at Benzeen Automotive
June 1, 2019 - March 1, 2023
Replaced legacy systems with full-stack web apps in React, Node.js, and Ruby on Rails, delivering scalable solutions used by automotive clients (Kelley Blue Book & AutoTrader). Worked Georgia, USA.
Software Engineer I at Benzeen Auto Parts
June 1, 2013 - June 1, 2019
Developed mobile apps using Flutter and built features for scanning, photographing, and uploading images of auto parts. Led a team of 10 developers and analysts to deliver the company web application, using Angular/JS, HTML/CSS, .NET, and SQL on GCP.
Software Engineer II at Cox Automotive (Kelley Blue Book & Autotrader)
June 1, 2019 - March 1, 2023
Replaced legacy systems with full-stack web apps (React/React Native, Node, Next, Ruby on Rails, Java, Python); designed data warehousing schemas; automated testing with Selenium, Jest, Enzyme; achieved significant cost reductions and improved data access at scale.
Lecturer & Instructor at Georgia Tech, UC Davis, UC Berkeley & iDTech
June 1, 2019 - December 1, 2024
Designed AI/ML and full-stack curricula; led in-person and remote classes (10–90 students), covering neural networks, machine learning, TensorFlow, Python, and related topics.
Advisory Board Member at USF Muma College of Business
August 1, 2021 - August 1, 2022
Advised on IT software development and business certificate programs; provided strategic guidance on curriculum development.
Software Engineer at American Red Cross
May 1, 2020 - May 1, 2021
Revamped blood supply dashboard to a modern web application; contributed code and data-driven insights to Covid-19 response initiatives using JavaScript, Java, and SQL.

Education

Bachelor of Science in Computer Science: Software Engineering & Data Science at California State University, Sacramento
August 1, 2014 - August 1, 2019
Bachelor of Science in Computer Science (Software Engineering & Data Science) at California State University, Sacramento
August 1, 2014 - August 1, 2019

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Manufacturing, Professional Services, Computers & Electronics, Telecommunications